Correct Answer: C

Rationale: Level IV nurseries are equipped to provide the highest level of care, including complex surgical interventions for serious congenital or acquired malformations. These nurseries have the necessary resources and expertise to manage critical cases effectively.

Correct Answer: D

Rationale: The provider should report the leakage of cerebrospinal fluid to the healthcare provider as it may indicate shunt malfunction or infection, requiring immediate attention to prevent complications.

Correct Answer: A

Rationale: The parent should provide a well-balanced diet that is high in protein and calories for a child with cystic fibrosis. This diet helps meet the child's increased energy requirements. Offering high-protein meals and snacks throughout the day is essential to ensure adequate nutrition and energy intake for children with cystic fibrosis.

Correct Answer: C

Rationale: When a patient is prescribed verapamil and digoxin, it is crucial to monitor for signs of digoxin toxicity due to the potential interaction between these medications. Verapamil can elevate digoxin blood serum levels, increasing the risk of toxicity. Symptoms of digoxin toxicity include nausea, vomiting, and visual changes. Restricting intake of oral fluids and high-fiber foods is not a specific consideration related to this medication combination. Before administering digoxin, it is essential to take an apical pulse for a full minute, not just 30 seconds. Additionally, holding the medications if the heart rate exceeds 110 bpm is not a typical response to the combination of verapamil and digoxin, which can cause bradycardia rather than tachycardia.

Correct Answer: A

Rationale: The correct answer is A. The posterior fontanel should be closed by 4 months of age. An open posterior fontanel at this age may indicate a delay in normal closure, which could be a cause for concern and require further evaluation by the healthcare provider to ensure proper development and growth.